Pumps for mineral acids and their derivatives (e.g. H₂SO₄, HNO₃) 

Safe handling of corrosive substances

Mineral acids are among the most important basic chemicals used in industry. The best-known examples include sulphuric acid (H₂SO₄) and nitric acid (HNO₃), which are used in numerous chemical and industrial processes.

Sulphuric acid is used, amongst other things, in the manufacture of fertilisers, dyes, plastics and explosives. It is also used in metalworking for etching metals. With an annual global production of over 150 million tonnes, it is one of the most important industrial chemicals.

Nitric acid is an important raw material for the production of nitrates and fertilisers, as well as for various chemical synthesis processes. It is also used in metalworking for pickling and cleaning metals.

As sulphuric and nitric acids are highly corrosive and can react violently with many substances, their handling places high demands on the choice of materials, leak-tightness and operational safety.

Two workers in blue coveralls and yellow hard hats inspecting pipelines and equipment at a chemical plant.

Useful information about mineral acids and their derivatives

Key figures for the medium

The properties of sulphuric acid (H₂SO₄) and nitric acid (HNO₃) are significantly influenced by concentration and temperature.

Our references

The use of sulphuric acid in refining processes

International chemical companies use HERMETIC canned motor pumps to transport sulphuric acid in refining and production processes. High corrosion resistance, maximum leak-tightness and reliable continuous operation are crucial in this context.

The use of sulphuric acid in refining processes

Application: Mineral acids and derivatives

Red tractor with boom sprayer applying liquid fertilizer or pesticide to rows of young corn seedlings in a field.

Requirement

Medium:Schwefelsäure (H2SO4) 92% 
Delivery rate:25 m3/h
Pumping head:36 m
Operating temperature: 38 °C
Advantages: Leckagefrei, wartungsarm, kompakt 

Hermetic Solutions

Pump:CNP 50-160 
Motor:N64r-2
Pump type:Einstufig
Ex protection: EX II 2G Ex db eb IIB T6 Gb
Speciality: Pumpe aus Duplex Stahl 1.4593

The use of nitric acid in chemical production processes

HERMETIC canned motor pumps are used worldwide for pumping nitric acid. Their hermetically sealed design ensures safe and reliable operation, even with corrosive and emission-sensitive media.

The use of nitric acid in chemical production processes

Application: Mineral acids and derivatives

Agricultural sprayer applying mineral acid-based pesticides over a blooming yellow rapeseed field.

Requirement

Medium:Salpetersäure (HNO3) 69% 
Delivery rate:41 m3/h
Pumping head:36 m
Operating temperature: 1°C bis 50 °C 
Advantages: Leckagefrei, wartungsarm, kompakt

Hermetic Solutions

Pump:CN 80-50-160 
Motor:N54p2 
Pump type:Chemienorm einstufig 
Ex protection: Ex II 2G Ex db eb IIB T5 Gb 

Customisations

Can’t find your application here? 

We’ll work with you to develop a suitable pump solution for your specific process requirements. Thanks to our many years of experience in handling critical media, we can also produce bespoke designs and specialised solutions. 

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Get in touch with our experts

Are you planning to use mineral acids, or do you have any questions about conveying technology, system design or possible applications? Please contact our team of experts. We’d be happy to advise you.